Fragmentation and PDQ priority also have a huge effect on the speed of data retrieval and will help table scans.

分段和PD Q优先级也对于数据的检索速度有极大的影响，并有助于表扫描。

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A high-speed line between Kunming and Shanghai is months behind schedule because officials are now making safety a high priority, according to interviews with subcontractors working on the project.

采访昆明至上海高铁线的转包承建商得知，由于官方强调安全第一，该线路的建设进度已落后原计划几个月。

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Speed is still a priority: It takes 11 people at the main bakery to turn out 60,000 buns an hour for clients across 40 states, South America, and the Caribbean.

速度仍然是首要考虑的：11名工人在主面包房每小时生产6万个面包，供应的客户遍布美国40个州、南美洲和加勒比海地区。

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"Given Shane's experience - he's been around for a while, he's been working pretty hard on his fitness and his speed and that's been a priority for him, " said Gatland.

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Gov. Deval Patrick and Mayor Thomas Menino have made speed in getting the money to those who need it a top priority, said Feinberg, who hopes to begin sending payments June 30.

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And there would be a 15-year priority programme of improvements to the rail network, including the introduction of high speed links between London, Heathrow Airport, Birmingham and Manchester.

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